Improvement in windmills



- I 2Sheets--Sheet1. M. KAUFFMANN.

- Wind-Mills. NO. 142,479; Patented September 2, 1873.

Witnesses Inventor.

M6 2 r fbu j aawm/ 2 Sheets--Sheet 2.

M. KAUFFMANN. Wind-Mills.

; Witnesses flttorneys.

I Frrcn.

MOSES J K'AUFFMAN, OF ARGOLA, ILLINOIS.

IMPROVEMENT IN WINDMILL S.

Specification forming part of Letters Patent No. 142,479, dated September 2, 1873; application filed April 11, 1873.

To all whom it may concern:

Be it known that I, Mosns J. KAUFFMANN, of Arcola, in the county of Douglas and in the State of Illinois, have invented certainnew and useful Improvements in Windmill; and do hereby declare that the followin g is a full, clear,

and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon making a part of this specification.

The nature of my invention consists in the construction and arrangement of a windmill, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which Figure 1 is a side elevation, and Fig.2 a plan View, of my windmill. Figs. 3, 4, and 5 are detached views of certain parts thereof.

A represents the post or standard with a turn-table, B, on its upper end, said table supporting the crank-shaft O in the usual manner. On the outer end of this shaft 0 is a disk or wheel, E, having a series of radial round arms, a a, projecting a suitable distance from the edge of the wheel, and at equal distances apart. D D represent the wings, which are each, on the rear side, provided with two metal sockets, b b, as shown in Fig. 4, and placed one upon each of the round arms a. On the outer end of each arm is a slight projection which prevents the wing from coming off from the same, but does not in any way interfere with the wing revolvin gfor a certain distance on the arm. On the shaft 0, back of the wheel E D, is a sleeve, d, to the front end of which a disk, G, is attached, which disk is provided with a series of rods, 0 e, projecting radially from the same, and the said rods pass through loops ff formed upon one of the inner corners of each wing D, so

that, by moving the sleeve (1 with its disk G on the shaft backward from the wheel, the wings will be turned on their arms. To the sleeve 01 is also attached a cross-head, H, from Y which two guide=rods, h h, pass through suitable boxes or bearings on the turn-table. From each end of the cross-head H a chain, c, or

coupled rods extend backward to and connect with a lever, k, which two levers are pivoted on a platform, I, on the rear part of the turntable, and extend one to each side, as shown in Fig. 2. On the outer end of each lever k is pivoted a governor-wing, J, which is made in two parts, so as to increase or diminish its surface as occasion may require, the governorwin g being held in a perpendicular position by a weight, K. A spring, m, is placed behind each of the levers k to throw the same, with the governor-wing, forward.

The object of putting the wings G G in sockets, as described, and of the governorwings J J, is to avoid the strain and breakage by storms and gales. As the winds increase in force the governor-wings J J are pushed back, turning the edges of the wings D D to the gale. These governor-win gs J J also regulate the motion of the mill. In ordinary mills the stronger the wind the greater the speed, but in mine the action of the governor-wings, by turning the edges of the wings D D to the wind, prevents any material acceleration of motion, unless desired, thus securing uniform rate of speed. As the wind decreases the springs m m bring the governor-wings J J back to their position. The wings D D are brought back against the wind by means of a weight, L, suspended on one end of a lever, M, the other end of which is forked and works against a cross-bar, a, connecting the two guide-rods h h, as shown in Fig. 3.

The speed may be increased or decreased by adding to or decreasing the weight L, as the wings D D cannot be turned out of the wind until the force of the wind on the governorwings J J is strong enough to overcome said weight.

N represents thepitman attached on the crank of the shaft 0, and on said pitman is placed a sleeve, 0, which is connected, by a rope or chain, 8, with the cross-bar a. above mentioned. The sleeve 0 is attached to a lever, I, which is pivoted, at one end, to a board R, attached to the post A, and the other end of this lever is held, by a pin, through either of a series of holes, 00 as, in the other end of the board It. By this means the mill may I be set for light or heavy winds, and its move ment easily regulated. S represents the usual windboard projecting from the rear end of the turn-table B to keep the wheel to the wind in the usual manner.

Having thus fully described my invention, what 1 claim as new, and desire to secure by Letters Patent, is-

The arrangement, with the wings D, pivoted to the disk E by the arms a and socketb, as described, of the loops f, rods 0, disk G, sleeve 07, cross-head H, chains i, levers 7a, springs m, and governor-wings J, all substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal this 14th day of March, 1873.

MOSES J. KAUFFMANN. [L. s.]

Witnesses:

H. D. JENKINS, MoH. BROOKS. 

